This is a list of state leaders in the 19th century from the Holy Roman Empire up to the time of German mediatisation (1801–1806) AD.

• Holy Roman Empire, Kingdom of Germany (complete list, complete list) –

• Francis II, Emperor Elect, King (1792–1806)

• Archduchy/ Austrian Empire (complete list) –

• Archduke/Emperors (complete list) –

• Francis II, Archduke (1792–1804), Emperor (1804–1835)

• Kingdom of Hungary (complete list) –

• Francis II, King (1792–1835)

• Principality of Auersperg (complete list) –

• Wilhelm I, Prince (1800–1806)^{[1][better source needed][2][better source needed]}

• Prince-Bishopric of Brixen (complete list) –

• Karl Franz Lodron, Prince-bishop (1791–1803)

• Prince-Bishopric of Chur (complete list) –

• Karl Rudolf Graf von Buol-Schauenstein, Prince-bishop (1794–1803)

• Fürstenberg-Fürstenberg (complete list) –

• Charles Joachim, Prince (1796–1804)

• Principality of Heitersheim (complete list) –

• Ignaz Balthasar Rinck von Baldenstein, Prince-prior (1796–1806)

• Liechtenstein (complete list) –

• Aloys I, Prince (1781–1805)
• Johann I Josef, Prince (1805–1836)

• Duchy of Teschen (Cieszyn) (complete list) –

• Albert Casimir, Duke (1766–1822)

• Prince-Bishopric of Trent (complete list) –

• Emmanuel Maria Graf von Thun und Hohenstein, Prince-bishop (1800–1802), Prince (1802–1803)

• Electorate/ Kingdom of Bavaria (complete list) –

• Maximillian IV, Elector (1799–1805), King (1805–1825)

• Berchtesgaden Prince-Provostry (complete list) –

• Joseph Konrad von Schroffenberg-Mös, Prince-provost (1780–1803)

• Saint Emmeram's Abbey (complete list) –

• Coelestin II Steiglehner, Prince-Abbot (1791–1803)

• Prince-Bishopric of Freising (complete list) –

• Joseph Conrad Freiherr, Prince-bishop (1790–1802)

• Prince-Abbey of Niedermünster (complete list) –

• Maria Violanta von Lerchenfeld-Premberg, Abbess (1793–1801)
• Maria Helena von Freien-Seiboltsdorf, Abbess (1801–1803)

• Prince-Abbey of Obermünster (complete list) –

• Maria Josepha von Neuenstein-Hubacker, Abbess (1775–1803)

• Imperial County of Ortenburg (complete list) –

• Joseph Charles Leopold, Count (1787–1805)

• Pappenheim (complete list) –

• Charles Theodore Frederick Eugene Francis, Count (1792–1806)

• Prince-Bishopric of Passau (complete list) –

• Leopold Leonard, Prince-Bishop (1796–1803)

• Prince-Bishopric of Regensburg (complete list) –

• Joseph Konrad von Schroffenberg, Prince-bishop (1790–1803)

• Prince-Archbishopric of Salzburg (complete list) –

• Hieronymus von Colloredo, Prince-archbishop (1772–1803)

• Kingdom of Bohemia (complete list) –

• Francis II, King (1792–1835)

• Prince-Bishopric of Bamberg (complete list) –

• Christoph Franz von Buseck, Prince-bishop (1795–1802)

• Prince-Bishopric of Eichstätt (complete list, de) –

• Joseph Graf von Stubenberg [de], Prince-bishop (1790–1802)

• Hohenlohe-Bartenstein (complete list) –

• Louis Aloysius, Prince (1799–1806)
• Karl August, Prince (1806)

• Hohenlohe-Ingelfingen (complete list) –

• Frederick Louis, Prince (1796–1806)^[3]
• August, Prince (1806)^[3]

• Hohenlohe-Jagstberg (complete list) –

• Karl Joseph [de], Prince (1798–1806)

• Hohenlohe-Kirchberg (complete list) –

• Christian Friedrich Karl zu Hohenlohe-Kirchberg [de], Prince (1767–1806)

• Hohenlohe-Langenburg (complete list) –

• Karl Ludwig, Prince (1789–1806)

• Hohenlohe-Oehringen –

• Ludwig Friedrich Karl (Hohenlohe-Neuenstein-Öhringen) [de], Prince (1765–1805)

inherited by Frederick Louis of Hohenlohe-Ingelfingen

• Hohenlohe-Waldenburg-Schillingsfürst (complete list) –

• Charles Albert III, Prince (1796–1806)

• Schönborn-Heusenstamm (complete list) –

• Anselm Posthumous, Count (1726–1801)

• Schönborn-Wiesentheid (complete list) –

• Damian Hugo Erwin, Count (1772–1806)

• Prince-Bishopric of Würzburg (complete list) –

• Georg Karl Ignaz von Fechenbach zu Laudenbach, Prince-bishop (1795–1803)

• Arenberg (complete list) –

• Louis Engelbert, Duke (1778–1803)
• Prosper Louis, Duke (1803–1810)

• Elector-Archbishopric of Cologne (complete list) –

• Maximilian Franz of Austria, Archbishop-elector (1784–1801)
• Anton Viktor of Austria, Archbishop-elector (1801–1803)

• Elector-Bishopric of Mainz (complete list) –

• Friedrich Karl Joseph von Erthal, Archbishop-elector (1774–1802)
• Karl Theodor Anton Maria von Dalberg, Archbishop-elector (1802–1803)

• Electoral Palatinate (complete list) –

• Maximilian I Joseph, Count Palatine of Zweibrücken (1795–1799), Elector of Palatinate and of Bavaria (1799–1803)

• Thurn und Taxis (complete list) –

• Karl Anselm, Prince (1773–1805)
• Karl Alexander, Prince (1805–1806)

• Elector-Bishopric of Trier (complete list) –

• Clemens Wenzel of Saxony, Archbishop-elector (1768–1801)

• Bentheim-Bentheim (complete list) –

• Frederick Charles, Count (1731–1803)
• Louis of Bentheim-Steinfurt, Count (1803–1806)

• Bentheim-Steinfurt (complete list) –

• Louis, Count (1780–1803)

• Bentheim-Tecklenburg-Rheda (complete list) –

• Moritz Kasimir II, Count (1768–1805)
• Emil Friedrich I, Count (1805–1808)

• Princely Abbey of Corvey (de:complete list) –

• Ferdinand von Lüninck [de], Prince-bishop (1794–1802)

• Essen Abbey (complete list) –

• Maria Kunigunde of Saxony, Princess-Abbess (1776–1802)

• Herford Abbey (complete list) –

• Frederica Charlotte, Abbess (1764–1802)

• Limburg-Styrum-Borkelö (complete list) –

• Otto Ernest Gelder, Count (1776–1806)

• Limburg-Styrum-Bronchhorst (complete list) –

• Frederick Theodore Ernest, Count (1766–1806)

• Limburg-Styrum-Styrum (complete list) –

• Ernst Maria von Limburg-Styrum [de], Countess (1794–1806)

• Principality of Lippe (complete list) –

• Leopold I, Count (1782–1789), Prince (1789–1802)
• Leopold II, Prince (1802–1851)

• Lippe-Biesterfeld (complete list) –

• Karl, Count (1781–1810)

• Prince-Bishopric of Münster (complete list) –

• Maximilian Franz, Prince-bishop (1784–1801)
• Anton Victor, Prince-bishop (1801–1802)

• Principality of Orange-Nassau –

• William V (1751–1806)
• William I (1806, 1813–1815)

• Principality of Nassau-Orange-Fulda –

• William I, Prince (1803–1806)

• Duchy of Oldenburg (complete list) –

• Wilhelm I, Duke (1785–1810), Grand Duke (1815–1823)

• Principality of Orange-Nassau (complete list) –

• William V, Prince (1751–1806)
• William VI, Prince (1806)

• Prince-Bishopric of Osnabrück (complete list) –

• Frederick of York and Albany, Prince-bishop (1764–1802)

• Prince-Bishopric of Paderborn (complete list) –

• Franz Egon von Fürstenberg, Prince-bishop (1789–1825)

• Wied-Neuwied (complete list) –

• Frederick Charles, Prince (1791–1802)
• John Augustus, Prince (1802–1806)

• Wied-Runkel (complete list) –

• Karl Ludwig Friedrich Alexander, Prince (1791–1806)

• Prince-Bishopric of Basel (complete list) –

• Franz Xaver von Neveu, Prince-bishop (1794–1803)

• Free City of Frankfurt (de:complete list) –

• Senior Mayors (de:complete list) –

• Anton Ulrich von Holzhausen [de], Senior Mayor (1800–1801)
• Adolph Carl von Humbracht, Senior Mayor (1801–1802)
• Johann Nicolaus Olenschlager von Olenstein, Senior Mayor (1802–1803)
• Johann Friedrich von Riese, Senior Mayor (1803–1804)
• Johann Nicolaus Olenschlager von Olenstein, Senior Mayor (1804–1805)
• Friedrich August von Wiesenhütten, Senior Mayor (1805–1806)
• Anton Ulrich Carl von Holzhausen, Senior Mayor (1806)

• Stadtschultheißens (de:complete list) –

• Johann Friedrich Maximilian von Stalburg, Stadtschultheißen (1788–1802)
• Wilhelm Carl Ludwig Moors, Stadtschultheißen (1788–1806)
• Friedrich Carl Schweitzer, Stadtschultheißen (1806)

• Princely Abbey of Fulda (complete list) –

• Adalbert von Harstall [de], Prince-bishop (1789–1802)

• Hesse-Darmstadt (complete list) –

• Louis X, Landgrave of Hesse-Darmstadt (1790–1806), Grand Duke of Hesse (1806–1830)

• Grand Duchy of Hesse and by Rhine (complete list) –

• Louis I, Landgrave of Hesse-Darmstadt (1790–1806), Grand Duke of Hesse (1806–1830)

• Hesse-Homburg (complete list) –

• Frederick V, Landgrave (1751–1820)

• Hesse-Kassel (complete list) –

• William XIII, Landgrave of Hesse-Kassel (1785–1803), Elector of Hesse (1803–1807, 1813–1821)

• Electorate of Hesse (complete list) –

• William I, Landgrave of Hesse-Kassel (1785–1803), Elector of Hesse (1803–1807, 1813–1821)

• Hesse-Philippsthal (complete list) –

• William, Landgrave (1770–1806)

• Hesse-Philippsthal-Barchfeld (complete list) –

• Adolph, Landgrave (1777–1803)
• Charles, Landgrave (1803–1854)

• Hesse-Rotenburg (complete list) –

• Charles Emmanuel, Landgrave (1778–1812)

• Isenburg-Birstein (complete list) –

• Wolfgang Ernest II, Prince (1754–1803)
• Charles of Isenburg, Prince of Isenburg (1803–1806)

• Isenburg-Büdingen (complete list) –

• Ernst Casimir II. von Isenburg und Büdingen, Count (1775–1801)
• Ernest Casimir [de], Count (1801–1840), Prince (1840–1848)

• Isenburg-Büdingen-Birstein (complete list) –

• Wolfgang Ernest II, Prince (1754–1803)
• Karl, Prince (1803–1820)

• Isenburg-Meerholz (complete list) –

• John Frederick William, Count (1774–1802)
• Charles Louis William, Count (1802–1806)

• Isenburg-Philippseich (complete list) –

• Henry Ferdinand, Count (1779–1806)

• Isenburg-Wächtersbach –

• Louis Maximilian I, Count (1798–1805)
• Louis Maximilian II, Count (1805–1806)

• Principality of Isenburg (complete list) –

• Charles of Isenburg, Prince of Isenburg (1803–1806)

• Leiningen-Dagsburg-Falkenburg –

• Maria Louise Albertine, Countess (1766–c.1803)

• Leiningen-Westerburg-Altleiningen (de:complete list) –

• Christian Karl, Count (1770–1806)

• Leiningen-Westerburg-Neuleiningen (de:complete list) –

• Ferdinand Karl III, Count (1798–1806)

• Principality of Leiningen (de:complete list) –

• Carl Friedrich Wilhelm, Count (1756–1779), Prince (1779–1807)^{[4][better source needed]}

• Nassau-Usingen (complete list) –:*Charles William, Prince (1775–1803)

• Frederick Augustus, Prince of Nassau-Usingen (1803–1806), Duke of Nassau (1806–1816)

• Nassau-Weilburg (complete list) –

• Frederick William, Princely count (1788–1806), Prince (1806–1816)

• Salm-Horstmar (complete list) –

• Frederick Charles Augustus, Count (1803–1813)

• Salm-Kyrburg (complete list) –

• Frederick IV, Prince (1794–1813)

• Salm-Reifferscheid-Bedburg (complete list) –

• Francis William, Altgrave (1798–1804), Prince (1804–1806)

• Salm-Reifferscheid-Dyck (complete list) –

• Francis William, Count (1798–1804), Prince (1804–1806)

• Salm-Reifferscheid-Hainsbach (complete list) –

• Francis Wenceslaus, Altgrave (1769–1811)

• Salm-Reifferscheid-Krautheim (complete list) –

• Francis William, Altgrave (1798–1804), Prince (1804–1806)

• Salm-Reifferscheid-Raitz (complete list) –

• Charles Joseph, Altgrave (1769–1790), Prince (1790–1811)

• Salm-Salm (complete list) –

• Konstantin Alexander, Prince (1778–1813)

• Sayn-Wittgenstein-Berleburg (complete list) –

• Albrecht, Prince (1800–1806)

• Sayn-Wittgenstein-Hohenstein (complete list) –

• Friedrich II, Count (1796–1801), Prince (1801–1806)

• Prince-Bishopric of Sion (complete list) –

• Joseph Anton Blatter, Prince-Bishop (1790–1807)

• Solms-Braunfels (complete list) –

• Wilhelm Christian Karl, Prince (1783–1806)

• Prince-Bishopric of Strasbourg (complete list) –

• Louis René Édouard de Rohan-Guéméné, Prince-Bishop (1779–1801)
• Jean Pierre Saurine, Prince-Bishop (1802–1803)

• Prince-Bishopric of Speyer (complete list) –

• Philipp Franz Wilderich of Walderdorf, Prince-bishop (1801–1802)

• Principality of Waldeck and Pyrmont (complete list) –

• Friedrich Karl August, Prince (1763–1812)

• Prince-Bishopric of Worms (complete list) –

• Friedrich Karl Josef von Erthal, Prince-bishop (1774–1802)

• Bremen-Verden (complete list) –

• George III, Duke (1760–1807, 1813–1820)

• Principality of Brunswick-Wolfenbüttel/ Principality of Wolfenbüttel (complete list) –

• Charles William Ferdinand, Prince (1780–1806)
• Frederick William, Prince of Brunswick-Wolfenbüttel (1806–1807), Duke of Brunswick (1813–1815)

conquered by the French Kingdom of Westphalia, 1807–1813; in 1814 reformed as the: Duchy of Brunswick

• Duchy of Brunswick (complete list) –

• Frederick William, Prince of Brunswick-Wolfenbüttel (1806–1807), Duke of Brunswick (1813–1815)

• Gandersheim Abbey (complete list) –

• Augusta Dorothea, Princess-Abbess (1778–1810)^[5]

• Electorate/ Kingdom of Hanover (complete list) –

• George III, Elector (1760–1806), King (1814–1820)

• Free City of Hamburg (complete list) –

• Franz Anton Wagener, Mayor (1790–1801)^[6]
• Peter Hinrich Widow, Mayor (1800–1802)
• Friedrich von Graffen, Mayor (1801–1810)^[6]
• Wilhelm Amsinck, Mayor (1802)
• Johann Arnold Heise, Mayor (1807)

• Prince-Bishopric of Hildesheim (complete list) –

• Franz Egon von Fürstenberg, Prince-bishop (1789–1803)

• Duchy of Holstein

• Dukes (complete list) –

• Christian VII, Duke of Holstein-Glückstadt (1766–1773), of Holstein (1773–1808)

• Statholders (complete list) –

• Charles of Hesse-Kassel, Statholder (1768–1836)

• Prince-bishopric of Lübeck (complete list) –

• Peter Frederick Louis, Prince-bishop (1785–1803)

• Free City of Lübeck (complete list) –

• Johann Philipp Plessing [de], Mayor (1804)
• Johann Caspar Lindenberg [de], Mayor (1805)
• Mattheus Rodde [de], Mayor (1806)
• Johann Matthaeus Tesdorpf [de], Mayor (1806)

• Duchy/ Grand Duchy of Mecklenburg-Schwerin (complete list) –

• Frederick Francis I, Duke (1785–1815), Grand Duke (1815–1837)

• Duchy/ Grand Duchy of Mecklenburg-Strelitz (complete list) –

• Charles II, Duke (1794–1815), Grand Duke (1815–1816)

• Duchy/ Grand Duchy of Oldenburg (complete list) –

• Wilhelm, Duke (1784/85–1810, 1813–1815), Grand Duke (1815–1823)

• Electorate/ Kingdom of Saxony (complete list) –

• Frederick Augustus the Just, Elector (1763–1806), King (1806–1827)

• Electorate of Brandenburg, Kingdom of Prussia (complete list, complete list) –

• Frederick William III, Elector (1797–1806), King (1797–1840)

• Anhalt-Bernburg (complete list) –

• Alexius Frederick Christian, Prince (1796–1807), Duke (1807–1834)

• Anhalt-Bernburg-Schaumburg-Hoym (complete list) –

• Karl Louis, Prince (1772–1806)

• Anhalt-Dessau (complete list) –

• Leopold III, Prince (1751–1758), Duke (1758–1817), Regent of Anhalt-Köthen (1812–1817)

• Reuss-Ebersdorf (complete list) –

• Heinrich LI, Count (1779–1806), Prince (1806–1822)

• Anhalt-Köthen (complete list) –

• Augustus Christian Frederick, Prince (1789–1806), Duke (1806–1812)

• Reuss-Greiz (complete list) –

• Heinrich XIII, Prince (1800–1817)

• Reuss-Lobenstein (complete list) –

• Heinrich XXXV, Count (1782–1790), Prince (1790–1805)
• Heinrich LIV, Prince (1805–1824)

• Reuss-Schleiz (complete list) –

• Heinrich XLII, Count (1784–1806), Prince (1806–1818)

• Saxe-Coburg-Saalfeld (complete list) –

• Francis, Duke (1800–1806)

• Saxe-Gotha-Altenburg (complete list) –

• Ernest II, Duke (1772–1804)
• Augustus, Duke (1804–1822)

• Saxe-Altenburg, Saxe-Hildburghausen (complete list) –

• Frederick, Duke of Saxe-Hildburghausen (1780–1826), of Saxe-Altenburg (1826–1834)

• Saxe-Meiningen (complete list) –

• Georg I, Duke (1782–1803)
• Louise Eleonore of Hohenlohe-Langenburg, Regent (1803–1821)

• Saxe-Weimar-Eisenach (complete list) –

• Karl August, Duke (1758–1815), Grand Duke (1815–1828)

• Schwarzburg-Rudolstadt (complete list) –

• Louis Frederick II, Prince (1793–1807)

• Schwarzburg-Sondershausen (complete list) –

• Günther Friedrich Carl I [de], Prince (1794–1835)

• Stolberg-Rossla (de:complete list) –

• Heinrich Friedrich Christian zu Stolberg-Roßla, Count (1768–1806)

• Stolberg-Stolberg (de:complete list) –

• Karl Ludwig zu Stolberg-Stolberg, Count (1765–1806)

• Stolberg-Wernigerode (complete list) –

• Christian Frederick, Count (1778–1807)

• Prince-Bishopric of Augsburg (complete list) –

• Clemens Wenceslaus of Saxony, Prince-bishop (1768–1803)

• Margraviate/ Electorate/ Grand Duchy of Baden (complete list, complete list) –

• Charles Frederick, Margrave of Baden-Durlach (1746–1771), of Baden (1771–1803), Elector (1803–1806), Grand Duke (1806–1811)

• Breisgau () –
• Prince-Bishopric of Constance (complete list) –

• Karl Theodor von Dahlberg, Prince-bishop (1799–1803)

• Prince-Provostry of Ellwangen (complete list) –

• Clemens Wenceslaus, Prince-provost (1787–1803)

• Gutenzell Abbey (de:complete list) –

• Maria Justina von Erolzheim, Princess-abbess (1776–1803)

• Hohenzollern-Hechingen (complete list) –

• Hermann, Prince (1798–1810)

• Hohenzollern-Sigmaringen (complete list) –

• Anton Aloys, Prince (1785–1831)

• Princely Abbey of Kempten (complete list) –

• de:Castolus Reichlin von Meldegg, Prince-abbot (1793–1803)

• Königsegg-Aulendorf (complete list) –

• Ernest, Count (1786–1803)
• Francis, Count (1803–1806)

• Königsegg-Rothenfels (complete list) –

• Francis Fidelis Anthony, Count (1771–1804)

• Oettingen-Wallerstein (complete list) –

• Kraft Ernst, Count (1766–1774), Prince (1774–1802)
• Ludwig Kraft, Prince (1802–1806)

• Stadion-Thannhausen (complete list) –

• John George Joseph Nepomuk, Count (1785–1806)

• Stadion-Warthausen (complete list) –

• Johann Philipp, Count (1787–1806)

• Duchy/ Electorate/ *Kingdom of Württemberg (complete list) –

• Frederick I, Duke (1797–1803), Elector (1803–1805), King (1805–1816)